NNDB: Tracking the entire world: I think this is trying to be a family tree to the world.
NNDB is an intelligence aggregator that tracks the activities of people we have determined to be noteworthy, both living and dead. […]
[…] it mostly exists to document the connections between people, many of which are not always obvious. A person’s otherwise inexplicable behavior is often understood by examining the crowd that person has been hanging out with.